Image Converter
Batch convert JPG, PNG and WebP images.
Open toolCreate compact JPGs with a selectable background. Your files stay on your device during processing.
Your file stays in this browser.
PNG · maximum 25 MB per file
Click here, then press Ctrl+V to pasteCreate a compact JPG from a PNG and choose the color used behind transparent areas.
JPG is often much smaller for photographs but does not support transparency. MyFileNest fills transparent PNG areas with your chosen color instead of silently turning them black.
A separate result that create compact JPGs with a selectable background. The source remains unchanged in the current browser session.
Reduce photographic PNG file size. Use a representative source, compare the output with the original, and keep the version that meets the destination's requirements.
PNG is best for transparency, screenshots and sharp graphics. JPG is usually smaller for photographs and opens almost everywhere.
Keep a PNG master when transparency or repeated editing matters, then make a JPG copy for delivery when smaller size is the priority.
JPG cannot preserve transparency Return to the retained source, adjust the relevant setting and create a fresh result rather than repeatedly processing the output.
The file is processed on this device and is not uploaded to MyFileNest. Closing or refreshing the page clears the active session.
Practical limit: Files up to 25 MB are accepted for guests. Very large dimensions, complex documents or limited device memory can affect browser processing.